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Two pressures are measured for a blood pressure reading 1  : Systolic blood pressure is a measure of blood pressure while the heart is beating. 2  Diastolic pressure is a measure of blood pressure while the heart is relaxed.
Systolic is the pressure when heart beats and diastolic is when heart relaxes. Normal Blood Pressure is Systolic=120mm Hg and Diastolic=80mm Hg, usually written as 120/80. Diseases caused by High Blood Pressure. These reading differ according to age and sex of the person. Here we are providing these various age groups of women.